/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 20:51:18,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 20:51:18,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 20:51:18,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 20:51:18,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 20:51:18,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 20:51:18,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 20:51:18,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 20:51:18,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 20:51:18,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 20:51:18,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 20:51:18,842 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 20:51:18,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 20:51:18,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 20:51:18,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 20:51:18,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 20:51:18,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 20:51:18,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 20:51:18,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 20:51:18,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 20:51:19,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 20:51:19,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 20:51:19,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 20:51:19,116 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-13 20:51:19,116 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-13 20:51:19,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-07-13 20:51:19,117 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-07-13 20:51:19,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 20:51:19,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-13 20:51:19,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 20:51:19,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 20:51:19,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 20:51:19,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 20:51:19,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 20:51:19,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 20:51:19,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 20:51:19,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... [2021-07-13 20:51:19,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 20:51:19,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 20:51:19,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 20:51:19,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 20:51:19,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 20:51:19,213 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-13 20:51:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 20:51:19,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 20:51:19,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-13 20:51:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 20:51:19,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 20:51:19,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-13 20:51:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 20:51:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 20:51:19,215 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 20:51:19,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 20:51:19,360 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-13 20:51:19,362 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:51:19 BoogieIcfgContainer [2021-07-13 20:51:19,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 20:51:19,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 20:51:19,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 20:51:19,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 20:51:19,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:19" (1/2) ... [2021-07-13 20:51:19,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97f5178 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:51:19, skipping insertion in model container [2021-07-13 20:51:19,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:51:19" (2/2) ... [2021-07-13 20:51:19,366 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-07-13 20:51:19,370 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 20:51:19,370 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 20:51:19,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 20:51:19,370 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 20:51:19,421 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-13 20:51:19,436 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-13 20:51:19,448 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 20:51:19,448 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 20:51:19,448 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 20:51:19,448 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 20:51:19,448 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 20:51:19,448 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 20:51:19,449 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 20:51:19,449 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 20:51:19,455 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 35 transitions, 86 flow [2021-07-13 20:51:19,473 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 152 states, 151 states have (on average 1.794701986754967) internal successors, (271), 151 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 151 states have (on average 1.794701986754967) internal successors, (271), 151 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:19,483 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:19,483 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:19,483 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:19,487 INFO L82 PathProgramCache]: Analyzing trace with hash -914189483, now seen corresponding path program 1 times [2021-07-13 20:51:19,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:19,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035791689] [2021-07-13 20:51:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:19,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:19,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035791689] [2021-07-13 20:51:19,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035791689] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:19,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:19,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 20:51:19,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464424329] [2021-07-13 20:51:19,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 20:51:19,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:19,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 20:51:19,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:19,721 INFO L87 Difference]: Start difference. First operand has 152 states, 151 states have (on average 1.794701986754967) internal successors, (271), 151 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:19,803 INFO L93 Difference]: Finished difference Result 202 states and 341 transitions. [2021-07-13 20:51:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-13 20:51:19,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:19,810 INFO L225 Difference]: With dead ends: 202 [2021-07-13 20:51:19,810 INFO L226 Difference]: Without dead ends: 154 [2021-07-13 20:51:19,811 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-07-13 20:51:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-07-13 20:51:19,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2021-07-13 20:51:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.7416666666666667) internal successors, (209), 120 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 209 transitions. [2021-07-13 20:51:19,836 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 209 transitions. Word has length 31 [2021-07-13 20:51:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:19,836 INFO L482 AbstractCegarLoop]: Abstraction has 121 states and 209 transitions. [2021-07-13 20:51:19,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 209 transitions. [2021-07-13 20:51:19,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:19,838 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:19,838 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:19,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 20:51:19,838 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:19,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1150170667, now seen corresponding path program 2 times [2021-07-13 20:51:19,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:19,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731381813] [2021-07-13 20:51:19,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:19,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:19,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731381813] [2021-07-13 20:51:19,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731381813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:19,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:19,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 20:51:19,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875572285] [2021-07-13 20:51:19,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 20:51:19,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 20:51:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:19,895 INFO L87 Difference]: Start difference. First operand 121 states and 209 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,013 INFO L93 Difference]: Finished difference Result 228 states and 387 transitions. [2021-07-13 20:51:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,018 INFO L225 Difference]: With dead ends: 228 [2021-07-13 20:51:20,018 INFO L226 Difference]: Without dead ends: 193 [2021-07-13 20:51:20,019 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 65.9ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-07-13 20:51:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-07-13 20:51:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2021-07-13 20:51:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.7047619047619047) internal successors, (179), 105 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 179 transitions. [2021-07-13 20:51:20,037 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 179 transitions. Word has length 31 [2021-07-13 20:51:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,037 INFO L482 AbstractCegarLoop]: Abstraction has 106 states and 179 transitions. [2021-07-13 20:51:20,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 179 transitions. [2021-07-13 20:51:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,038 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 20:51:20,038 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,039 INFO L82 PathProgramCache]: Analyzing trace with hash 628560125, now seen corresponding path program 3 times [2021-07-13 20:51:20,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588070807] [2021-07-13 20:51:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588070807] [2021-07-13 20:51:20,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588070807] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-13 20:51:20,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510970624] [2021-07-13 20:51:20,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 20:51:20,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 20:51:20,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:20,073 INFO L87 Difference]: Start difference. First operand 106 states and 179 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,078 INFO L93 Difference]: Finished difference Result 100 states and 167 transitions. [2021-07-13 20:51:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 20:51:20,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,079 INFO L225 Difference]: With dead ends: 100 [2021-07-13 20:51:20,079 INFO L226 Difference]: Without dead ends: 100 [2021-07-13 20:51:20,080 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:20,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-07-13 20:51:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-07-13 20:51:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.6868686868686869) internal successors, (167), 99 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 167 transitions. [2021-07-13 20:51:20,088 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 167 transitions. Word has length 31 [2021-07-13 20:51:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,089 INFO L482 AbstractCegarLoop]: Abstraction has 100 states and 167 transitions. [2021-07-13 20:51:20,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 167 transitions. [2021-07-13 20:51:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,090 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 20:51:20,090 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,090 INFO L82 PathProgramCache]: Analyzing trace with hash -88600699, now seen corresponding path program 4 times [2021-07-13 20:51:20,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650840997] [2021-07-13 20:51:20,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650840997] [2021-07-13 20:51:20,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650840997] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 20:51:20,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52953036] [2021-07-13 20:51:20,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 20:51:20,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 20:51:20,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:20,167 INFO L87 Difference]: Start difference. First operand 100 states and 167 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,238 INFO L93 Difference]: Finished difference Result 131 states and 210 transitions. [2021-07-13 20:51:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-13 20:51:20,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,239 INFO L225 Difference]: With dead ends: 131 [2021-07-13 20:51:20,239 INFO L226 Difference]: Without dead ends: 94 [2021-07-13 20:51:20,239 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 58.6ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-07-13 20:51:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-07-13 20:51:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2021-07-13 20:51:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.6025641025641026) internal successors, (125), 78 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2021-07-13 20:51:20,242 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 125 transitions. Word has length 31 [2021-07-13 20:51:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,242 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 125 transitions. [2021-07-13 20:51:20,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,242 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 125 transitions. [2021-07-13 20:51:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,243 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,243 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 20:51:20,243 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash 538045003, now seen corresponding path program 5 times [2021-07-13 20:51:20,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557968312] [2021-07-13 20:51:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557968312] [2021-07-13 20:51:20,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557968312] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:20,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728852489] [2021-07-13 20:51:20,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:20,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:20,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:20,302 INFO L87 Difference]: Start difference. First operand 79 states and 125 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,439 INFO L93 Difference]: Finished difference Result 214 states and 334 transitions. [2021-07-13 20:51:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 20:51:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,441 INFO L225 Difference]: With dead ends: 214 [2021-07-13 20:51:20,441 INFO L226 Difference]: Without dead ends: 208 [2021-07-13 20:51:20,441 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 92.6ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-07-13 20:51:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 90. [2021-07-13 20:51:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.595505617977528) internal successors, (142), 89 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2021-07-13 20:51:20,451 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 31 [2021-07-13 20:51:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,452 INFO L482 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2021-07-13 20:51:20,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2021-07-13 20:51:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,453 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,453 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 20:51:20,453 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,453 INFO L82 PathProgramCache]: Analyzing trace with hash 593498699, now seen corresponding path program 6 times [2021-07-13 20:51:20,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447449164] [2021-07-13 20:51:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447449164] [2021-07-13 20:51:20,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447449164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:20,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425592612] [2021-07-13 20:51:20,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:20,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:20,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:20,543 INFO L87 Difference]: Start difference. First operand 90 states and 142 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,658 INFO L93 Difference]: Finished difference Result 201 states and 310 transitions. [2021-07-13 20:51:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 20:51:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,659 INFO L225 Difference]: With dead ends: 201 [2021-07-13 20:51:20,659 INFO L226 Difference]: Without dead ends: 187 [2021-07-13 20:51:20,660 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 103.0ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-07-13 20:51:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 80. [2021-07-13 20:51:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.5949367088607596) internal successors, (126), 79 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 126 transitions. [2021-07-13 20:51:20,667 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 126 transitions. Word has length 31 [2021-07-13 20:51:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,667 INFO L482 AbstractCegarLoop]: Abstraction has 80 states and 126 transitions. [2021-07-13 20:51:20,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2021-07-13 20:51:20,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,671 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,672 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 20:51:20,672 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1972958505, now seen corresponding path program 7 times [2021-07-13 20:51:20,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938672413] [2021-07-13 20:51:20,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938672413] [2021-07-13 20:51:20,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938672413] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:20,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829642793] [2021-07-13 20:51:20,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:20,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:20,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:20,743 INFO L87 Difference]: Start difference. First operand 80 states and 126 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:20,854 INFO L93 Difference]: Finished difference Result 200 states and 309 transitions. [2021-07-13 20:51:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 20:51:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:20,856 INFO L225 Difference]: With dead ends: 200 [2021-07-13 20:51:20,856 INFO L226 Difference]: Without dead ends: 194 [2021-07-13 20:51:20,857 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-07-13 20:51:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 91. [2021-07-13 20:51:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.6) internal successors, (144), 90 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2021-07-13 20:51:20,860 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 31 [2021-07-13 20:51:20,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:20,860 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2021-07-13 20:51:20,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:20,861 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2021-07-13 20:51:20,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:20,861 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:20,861 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:20,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 20:51:20,861 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:20,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2028412201, now seen corresponding path program 8 times [2021-07-13 20:51:20,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:20,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684827868] [2021-07-13 20:51:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:20,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:20,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684827868] [2021-07-13 20:51:20,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684827868] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:20,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:20,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:20,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919480287] [2021-07-13 20:51:20,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:20,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:20,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:20,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:20,935 INFO L87 Difference]: Start difference. First operand 91 states and 144 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,035 INFO L93 Difference]: Finished difference Result 187 states and 285 transitions. [2021-07-13 20:51:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 20:51:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,036 INFO L225 Difference]: With dead ends: 187 [2021-07-13 20:51:21,036 INFO L226 Difference]: Without dead ends: 175 [2021-07-13 20:51:21,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.8ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:21,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-07-13 20:51:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 83. [2021-07-13 20:51:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 82 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2021-07-13 20:51:21,039 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 31 [2021-07-13 20:51:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,039 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2021-07-13 20:51:21,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2021-07-13 20:51:21,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,039 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,040 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 20:51:21,040 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,040 INFO L82 PathProgramCache]: Analyzing trace with hash 440382761, now seen corresponding path program 9 times [2021-07-13 20:51:21,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287152615] [2021-07-13 20:51:21,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287152615] [2021-07-13 20:51:21,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287152615] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-13 20:51:21,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527326768] [2021-07-13 20:51:21,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 20:51:21,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 20:51:21,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:21,050 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,053 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2021-07-13 20:51:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 20:51:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,053 INFO L225 Difference]: With dead ends: 82 [2021-07-13 20:51:21,053 INFO L226 Difference]: Without dead ends: 76 [2021-07-13 20:51:21,053 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-07-13 20:51:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-07-13 20:51:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.5466666666666666) internal successors, (116), 75 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2021-07-13 20:51:21,055 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 31 [2021-07-13 20:51:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,055 INFO L482 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2021-07-13 20:51:21,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2021-07-13 20:51:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,056 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,056 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 20:51:21,056 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash 205229245, now seen corresponding path program 10 times [2021-07-13 20:51:21,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045641307] [2021-07-13 20:51:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045641307] [2021-07-13 20:51:21,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045641307] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:21,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962267345] [2021-07-13 20:51:21,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:21,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:21,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:21,119 INFO L87 Difference]: Start difference. First operand 76 states and 116 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,206 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2021-07-13 20:51:21,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:21,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,207 INFO L225 Difference]: With dead ends: 98 [2021-07-13 20:51:21,207 INFO L226 Difference]: Without dead ends: 94 [2021-07-13 20:51:21,207 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 92.0ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-07-13 20:51:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 83. [2021-07-13 20:51:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 82 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2021-07-13 20:51:21,209 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 31 [2021-07-13 20:51:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,210 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2021-07-13 20:51:21,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2021-07-13 20:51:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,210 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,210 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 20:51:21,210 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,211 INFO L82 PathProgramCache]: Analyzing trace with hash 260682941, now seen corresponding path program 11 times [2021-07-13 20:51:21,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552352135] [2021-07-13 20:51:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552352135] [2021-07-13 20:51:21,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552352135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:21,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401772843] [2021-07-13 20:51:21,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:21,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:21,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:21,266 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,350 INFO L93 Difference]: Finished difference Result 87 states and 130 transitions. [2021-07-13 20:51:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:21,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,351 INFO L225 Difference]: With dead ends: 87 [2021-07-13 20:51:21,351 INFO L226 Difference]: Without dead ends: 74 [2021-07-13 20:51:21,351 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 95.1ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-07-13 20:51:21,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-07-13 20:51:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 73 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2021-07-13 20:51:21,353 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 31 [2021-07-13 20:51:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,353 INFO L482 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2021-07-13 20:51:21,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2021-07-13 20:51:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,354 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,354 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 20:51:21,354 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1640142747, now seen corresponding path program 12 times [2021-07-13 20:51:21,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992439310] [2021-07-13 20:51:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992439310] [2021-07-13 20:51:21,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992439310] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:21,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714350539] [2021-07-13 20:51:21,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:21,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:21,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:21,434 INFO L87 Difference]: Start difference. First operand 74 states and 112 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,513 INFO L93 Difference]: Finished difference Result 104 states and 159 transitions. [2021-07-13 20:51:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:21,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,514 INFO L225 Difference]: With dead ends: 104 [2021-07-13 20:51:21,514 INFO L226 Difference]: Without dead ends: 100 [2021-07-13 20:51:21,515 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 91.6ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-07-13 20:51:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2021-07-13 20:51:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.524390243902439) internal successors, (125), 82 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 125 transitions. [2021-07-13 20:51:21,517 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 125 transitions. Word has length 31 [2021-07-13 20:51:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,517 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 125 transitions. [2021-07-13 20:51:21,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,517 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2021-07-13 20:51:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,517 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,518 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 20:51:21,518 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1695596443, now seen corresponding path program 13 times [2021-07-13 20:51:21,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718756822] [2021-07-13 20:51:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718756822] [2021-07-13 20:51:21,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718756822] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:21,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520096590] [2021-07-13 20:51:21,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:21,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:21,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:21,577 INFO L87 Difference]: Start difference. First operand 83 states and 125 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,649 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2021-07-13 20:51:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,650 INFO L225 Difference]: With dead ends: 87 [2021-07-13 20:51:21,650 INFO L226 Difference]: Without dead ends: 73 [2021-07-13 20:51:21,650 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 85.0ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-07-13 20:51:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-07-13 20:51:21,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-07-13 20:51:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 72 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 110 transitions. [2021-07-13 20:51:21,651 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 110 transitions. Word has length 31 [2021-07-13 20:51:21,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,652 INFO L482 AbstractCegarLoop]: Abstraction has 73 states and 110 transitions. [2021-07-13 20:51:21,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 110 transitions. [2021-07-13 20:51:21,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-13 20:51:21,652 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:21,652 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:21,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 20:51:21,652 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:21,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:21,652 INFO L82 PathProgramCache]: Analyzing trace with hash -127865327, now seen corresponding path program 14 times [2021-07-13 20:51:21,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:21,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592076390] [2021-07-13 20:51:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:51:21,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:21,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592076390] [2021-07-13 20:51:21,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592076390] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:21,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:21,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 20:51:21,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568741702] [2021-07-13 20:51:21,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 20:51:21,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:21,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 20:51:21,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:21,687 INFO L87 Difference]: Start difference. First operand 73 states and 110 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:21,722 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2021-07-13 20:51:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 20:51:21,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-13 20:51:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:21,723 INFO L225 Difference]: With dead ends: 43 [2021-07-13 20:51:21,723 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 20:51:21,723 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.8ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-13 20:51:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 20:51:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 20:51:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 20:51:21,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-07-13 20:51:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:21,724 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 20:51:21,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 20:51:21,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 20:51:21,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 20:51:21,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 20:51:21,726 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 20:51:21,727 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 08:51:21 BasicIcfg [2021-07-13 20:51:21,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 20:51:21,728 INFO L168 Benchmark]: Toolchain (without parser) took 2591.41 ms. Allocated memory was 215.0 MB in the beginning and 314.6 MB in the end (delta: 99.6 MB). Free memory was 194.7 MB in the beginning and 213.8 MB in the end (delta: -19.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:21,728 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 215.0 MB. Free memory is still 195.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 20:51:21,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.99 ms. Allocated memory is still 215.0 MB. Free memory was 194.6 MB in the beginning and 193.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:21,728 INFO L168 Benchmark]: Boogie Preprocessor took 8.32 ms. Allocated memory is still 215.0 MB. Free memory was 193.1 MB in the beginning and 192.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:21,729 INFO L168 Benchmark]: RCFGBuilder took 195.89 ms. Allocated memory is still 215.0 MB. Free memory was 192.2 MB in the beginning and 180.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:21,729 INFO L168 Benchmark]: TraceAbstraction took 2364.70 ms. Allocated memory was 215.0 MB in the beginning and 314.6 MB in the end (delta: 99.6 MB). Free memory was 180.2 MB in the beginning and 213.8 MB in the end (delta: -33.5 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:21,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 215.0 MB. Free memory is still 195.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.99 ms. Allocated memory is still 215.0 MB. Free memory was 194.6 MB in the beginning and 193.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 8.32 ms. Allocated memory is still 215.0 MB. Free memory was 193.1 MB in the beginning and 192.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 195.89 ms. Allocated memory is still 215.0 MB. Free memory was 192.2 MB in the beginning and 180.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2364.70 ms. Allocated memory was 215.0 MB in the beginning and 314.6 MB in the end (delta: 99.6 MB). Free memory was 180.2 MB in the beginning and 213.8 MB in the end (delta: -33.5 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2278.1ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 16.2ms, AutomataDifference: 1150.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 540 SDtfs, 1311 SDslu, 1591 SDs, 0 SdLazy, 588 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 332.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 999.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 75.9ms AutomataMinimizationTime, 14 MinimizatonAttempts, 583 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.8ms SsaConstructionTime, 121.2ms SatisfiabilityAnalysisTime, 723.1ms InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...